Which one of the following on treatment with 50 % aqueous sodium hydroxide yields the corresponding alcohol and acid?

Question

Which one of the following on treatment with 50 % aqueous sodium hydroxide yields the corresponding alcohol and acid? (A) C6 H5 CH2 CHO  (B) C6 H5 CHO (C) CH3 CH2 CH2 CHO (D) CH3 - overset underset||OC - CH3

Tardigrade Admin · Accepted Answer

Aldehydes which do not have any α-hydrogen atom when heated with a concentrated solution of NaOH undergo a simultaneous oxidation and reduction (disproportionation) forming a salt of carboxylic acid and alcohol. This reaction is called Cannizaro reaction. 2 C 6 H 5 CHO + NaOH longrightarrow underset textBenzyl alcohol C 6 H 5 CH 2 OH + underset textSodium benzoateC 6 H 5 COONa

Q. Which one of the following on treatment with $50%$ aqueous sodium hydroxide yields the corresponding alcohol and acid?

$C_{6} H_{5} C H_{2} C H O$

$C_{6} H_{5} C H O$

$C H_{3} C H_{2} C H_{2} C H O$

$C H_{3} - C ∣∣ O - C H_{3}$

Q. Which one of the following on treatment with 50% aqueous sodium hydroxide yields the corresponding alcohol and acid?

C6​H5​CH2​CHO

C6​H5​CHO

CH3​CH2​CH2​CHO

CH3​−C∣∣O​−CH3​

Q. Which one of the following on treatment with $50%$ aqueous sodium hydroxide yields the corresponding alcohol and acid?

$C_{6} H_{5} C H_{2} C H O$

$C_{6} H_{5} C H O$

$C H_{3} C H_{2} C H_{2} C H O$

$C H_{3} - C ∣∣ O - C H_{3}$